These stuffed zucchinis taste just like tacos--except, in place of traditional beef or chicken, we're subbing in a yummy vegetarian filling Tofu is flavored with taco seasoning, garlic and tomato sauce, stuffed into tender zucchini and topped with melty cheese, creamy avocado, fragrant cilantro and red onion. We love this versatile, low-carb dinner because it can be made hundreds of different ways.